Lock.



W. E. SPARKS.

LUCK.

APPLICATION FILED N0v.29, ma.

1,141,984. Patented June 8,1915.

'A HORA/EY.

fa MM III. (D www THE MORRIS PETER C0., PHaTo-LHHO., WASHINGTON. D, c

W. E. SPARKS.

LOCK.

APPLICATION FILED N0v.29. 1913.

Patented June 8, 1915.

4 SHEETS-SHEET 2.

WHNESSES.- 4 [.vI/ENTOR.

BY Q/@ZM A T TORNE Y.

W. E. SPARKS'.

LOCK.

APPLICATION FILED Nov.29, 1913.

Patented .1 une 8, 1915.

4 SHEETS-SHEET 3- IN VEN T OR.

bm@ T .QM/ve.) BY

' ATTORNEY.

THE NORRIS PE O.. PHOTD-LJTHO.. WASHINGrON. D. C.

W. E. SPARKS.

LOCK.

APPLICATION FILED Nov. 29, 1913.

1,141,984. Patented June s, 1915.

4 SHEETS-SHEET 4.

llml'lllyllllllll. 4118 ATTORNEY.

rME MORRIS PETERS Co.. PHOTO-LITHO., WASHINGTON, D. C.

" sauras PATENT erro WILLIAM E. SPARKS, 0F NEW-HAVEN, CONNECTICUT,ASSIG-NOR TOSARGENT 8a COMPANY, OF NEW HAVEN, CONNECTICUT, 'ACORPORATION 0F CONNECTICUT.

LOCK.

T0 all whom t may concern Be it known that I, WILLIAM E. SPARKS, acitizen of the United States, residin in the city and county of NewHaven and' tate 0f Connecticut, have invented certain new and usefulImprovements in Locks, of whichV ing the usual series of keys), andmeans for clogging or blocking the outside knob, or other latchmanipulating device, automatically when the dead bolt is thrown from theinside of the room without dogging it when the door is locked from theoutside. Nevertheless, certain features of the invention are applicableto locks of other types.

rEhe primary objects of the invention are to provide improved means inconnection with the cylinder lock mechanism for operating the dead boltby means of a special key or keys, more especially with a View to thesimplification of the cylinder lock mechanism employed in locks of thetype indicated; to furnish a cylinder lock mechanism, including a bit ordog carried at the rear end of the key plug or barrel, and adapted to beextended rearwardly from the cylinder lock by the use of one key,withoutbeing so extended when another key or keys are used; to provide improvedand simplified tumbler mechanism for the dead bolt; to provide improvedand simplified means for dogging the knob mechanism, under theconditions above stated; and to improve the general construction andoperation of devices of the class to which my invention relates.

To these and other ends, the invention consists in the novel featuresand combinations of partsv to be hereinafter described and claimed.

In the accompanying drawings, Figure 1 is an elevation of a lockembodying my improvements, with the cap plate removed, the

Specification of Letters Patent.

Application filed November 29, 1913.

Patented June 8, 1915.

serial No. 803,724..

dead bolt being in its retracted position; Fig. 2 is a similar view,showing the position of the parts when the dead bolt has been protractedfrom the inside of the door; Fig. 3 is a reverse view of the upperportion of Fig.. 1; Fig. 3"L is a section on line 3a- 3a of Fig. 3;-Fig.4 is a reverse view of the upper portion of Fig. 2;'Fig. 5 is a viewsimilar to Fig. 4, showing the dead bolt partly retracted from theexterior yof the room, by means of the emergency key; Fig. 6 is a viewsimilar to Fig. 1, showing the position of the parts when the bolt isthrown from the exterior by the change or guest key; Fig. 7 is a sectionon line 7-7 of Fig. 3, showing the guest key in the cylinder lock; Fig.8 is a section on line 8 8 of Fig. 5; Fig. 9 is a section online 9-9 ofFig. 8; Fig. l0 is a detail view of the upper portion of the lock, withthe dead bolt removed; Fig. 11 is a section on line 11-11 of Fig. l;Fig. 12 is a section on line 12-12 of Fig. 1; Fig. 13 is a section online 13-13 of Fig. 2; and Fig. 14 is a detail of the master key and thedisplay key.

Referring to the drawings, the lock case 20 is shown as equipped withthe usual latch bolt 2l, adapted for operation by the ordinary hub 22and knob shoe or yoke 23. The hub 22 is adapted for actuation by thecustomary knob spindle (not shown). The case 20 also contains a slidingmember 24, preferably formed as a dead bolt projecting through the faceof the case, and adapted for protraction and retraction either byV acylinder lock mechanism 25, at the outside of the door, or by athumb-turn hub 26, or its equivalent, adapted for operation from theinside.

The bolt 24 is provided at its upper portion, in proximity with thecylinder lock mechanism 25, with talons 27, between which operates .a.projectionV 28 of a tumbler 29.

-This tumbler is pivoted on the bolt at 30,

and is provided with a stump 3l, adapted to cooperate in the usualmanner with a fence or rackingpost 32 on the cap plate. Under certainconditions, they bolt canbe thrown and retracted by a bit or dog 33 ofthe cylinder lock mechanism 25. The bit or dog 33 is arranged andoperated in the manner described in Letters Patent Number 1,069,734,granted to Sargentfth Company, on August 12, 1913, as assignee of JohnH.` Shaw. The bit'or rollback 33 may be operated'by the guest key 34(Fig. 7), master key 35 (Fig.

Y, bler 38 (Figs. 4 and 5), which slot is ,prof V 14), display key36;(Fig. 14), and emergency key 37.. (Fig.8). It is adapted to Yer1,-ter between the talons 27 and engage said talons, and the projection 2,8of the tumbler` in the usual manner, to protract and retract the deadbolt. Y A

The tumbler 29 maybe termed the primary tumbler of the deadV bolt.Another tumbler'38 ladapted for operation by the tliumbi-turnfhub26 maybe termed the seconda-rytumbler, and said secondary tumbler is adaptedto.act on the primarytumbler in Y such a manner that the thumbturnhub will20A operate said tumblers together.` lfhejtumbler '38"is1of the specialshape'illustrated in Fig. 8. It consists of a plate adapted to' slide onthe back of the lock case, behind the dead bolt 24,V andprovided with anarm 39 for'lcoperation with the'cylinderlockmechanism 25. 1t is alsoprovided with an'` arm 40, having a pin 41 with which the thumb,- turnhub 26c`operatesin'the usual manner.

n The tumbler 38 is guided in a direction gen-y erally paralleltothefboltby means of a slot 42, taking overa post 43. on the case,

and it is provided with shouldersy 44, 45 re? spectively, to coperatewith a racking post or fence 46 on the back of the case. A spring 47acts Von thisy tumbler in such a manner that when said tumbler occupiesthe position shown in dotted linesin Fig. 10,

the tumbler will be deadlocked byA engagement ofthe shoulder 44 with therear face `of. the post 4G, whereas whensaid tumbler 'occupies theposition yshownin full lines in Fig.y 10, it will be deadlocked bykengagement of the shoulder-45 with the frontface Y' The primary tumbler29v Vis of theY post. adapted to be Voperated by the 'secondary Vtumbleriny the following way: A lug 48,

extending backward from the tumbler, 29 (Fig. 3a), operates in a slot 49of the. tumided at its rear end (relatively to the face ofthe lock) witha notch forming a shoulder 50, with which the lug 48 is engaged, whenthe parts are in the positions shown in Figs. 1 and 4. The spring 29L oftumbler 29 normally yholds said tumbler interlocked with the tumbler 38by engaging the lug 48 with thepnotch just mentioned, butzthe lug i maybe ldisengaged from the notch by the bit or dog 33 of the cylinderlock,whereupon the tumbler. 29 and bolt 24 may be V.moved Vforwardindependently of the tumbler 38,

' with the lug 48 sliding freely in the slot 49.

The upper arm 39 ofthe tumbler 38 lies in close proximity tothe cylinderlock mecha-V nism 25, and said arm is adapted to be engaged by asupplemental bit or dog 51, associated with the cylinder lock mechanism.The bit or rollback 51 instead of being mounted on the wall of the ease,as in some prior locks, is carried wholly by the'cylinder lock andpermanentlyattached thereto." It

Visv rigidly fixed to awmember 53, such as a slide, adapted to beprojected rearwardly out of the rear end of the keyway, by engagementwith the rear end of the emergency key 37, as shown in F ig..8.. In thisposition, the bit 51 will lie in the plane of the arm 39 of thesecondary tumbler, so

, that the'latter may be operated by rotation ofV the emergencyvkey. Aspring 54, acting on the slide 53, within the key plug'or barrelnormally'holds the bit 51 in retracted position, wherein it is in closeproximity to the bit.V 33 and located out of the plane of the secondarytumbler.` The ends of the guest key 34and master key 35 are so shapedproject the same, and the bit 51',l but the end of the display key 36isshaped like that of the emergency key 37, sothat the display key willalso'move said bit into coperation with the secondary tumbler. l

Vrelatively to the slide 53 that they will not At itslower portion, thesecondary tumj llocated as to permit free movement of the knob shoe,.whereby the knobs may be freely operated Vto retract the latch bolt.lVhcn, however, the secondary tumbler 38 is thrown forward relatively tothe face plate of the lock, as shown in F 2, the projection 55 will rockthe lever 57 on its pivot to such an extent that the shoulder 61 of saidlever will move into position Vback ofthe shoulder 60 of the knob shoe.lnthis manner, the secondary tumblerwilly actuate the lever 57 tov4 dogthe knob shoe, whereby the rotation of the knobs will be prevented.

The operation of the lock is substantially as follows: vWhen the guestdesires to,A lock'l Vhis. room against intrusion, he `throws the deadbolt 24 by manipulation ofthe usual inside thumb-turn (not shown)connected with the thuinbfturn hubi26. ln this opera-V tion, thethumb-turn hub acts on the arm 40 of the secondary tumbler and depressesthe latter, so as to disengage the racking post or fence 46. At the sametime, the upper arm 39 ofthe secondary tumbler, having the slotv 49,"vdepresses the primary tumbler 29 by en-.

gagement with the upper surface ofthe lug 48, whereby the stump 3l ofthe'tumbler 29 is disengaged from the racking post or fence 32.- `With'both tumblers released in this manner, the continued rotation of thethumb-turn Will protract said tumblers and the bolt in an obviousmanner, 'the lug 48 of the primary tumbler remaining in engagement Withthe shoulder 50 oi' the secondary tumbler. Moreover, in addition tooperating the bolt, the secondary tumbler dogs the knob shoe in themanner previously described (Fig. 2l, and the clogging of the outsideknob will indicate to anyone at the outside of the door that the room isoccupied. Ordinarily, the chamber-maid on iinding the outside knoblocked against movement Will not attempt to open the door by means ofher key, z'. e., master key 35, but, in any event, the said master key35 Will be inoperative to retract Vthe dead bolt. rllhis follows fromthe inability of the bit 38 (the only bit of the cylinder lock operatedby the master key) to act on the secondary tumbler 38, which isdeadlocked by engagement oi its shoulder with the post 46, at previouslyexplained, and in turn deadlocks the dead bolt by engagement of aprojection 38, 'with a shoulder 88h, on the bolt shank. rThe emergency,or proprietorls key '57, Will, however, be operative to WithdrauT thebolt, under the conditions noted, so that the proprietor may have accessto the room at all times.V rlhis follows from the V.tactv that said keywhen inserted in the cylinder .lock 25, Will. move the supplemental bit5l into the plane of the tumbler 88, as previously described. Then uponrotation of said key, the primary and secondary tumblers will beoperated conjointly in an ol vious manner bv means oi' the bits 33 and5l respectively. T heV bit 33 Will move the stump 8l out oi engagementwith the tence 82, and the bit 51 will disenga ge the tumbler 38 fromthe fence 46, sothat the engagement of the bit 88, with the talons 27,Will then retract the bolt. its the secondary tumbler is moved back tromthe tace of the case, the clogging lever 5? will be actuated in anobvious manne]l to release the knob shoe.

il? hen the parts are in the position shown in ll ig. l, the guest key3i, or master key 85,' may be used to operate the dead bolt andprimarytumbler independently of the secondary tumbler. he bit 83 of thecylinder lock will depress the tumbler 29 independently ot the tumbler88, and will cooperate With the talons 27 in the usual manner, the lug48 oit tumbler 29 being moved to the forward end oit the slot a9.inasmuch as the secondary tumbler is unaii'ected by this operation, theclogging lever 57 will remain in a position to permit the iree operationof the knobs, as shown in Figs. 6 and l2.` This Will indicate that theroom is unoccupied.

The purpose of the display key 86 is Well understood in the art, and itsoperation needl not be referred to in detail, except Yto'say f adetailed one, in so far as it concerns the particular embodiment of myinvention selected for illustration and description, and

l have not attempted to illustrate and describe the numerousmodifications Which may be adopted vvithin the scope ofA the claims.

l do not claim herein the cylinder lock per se, as the same iorms thesubject matter of my divisional application,y Serial No.

846,802 tiled June 23, 1914.

What I claim is:

1 .In aV lock, a sliding member, a plurality of tumblers therefor, acylinder lock, a bit carried by said cylinder lock to engage one of saidtumblers, and another bit eccentric to the vrst carried by said cylinderlock to engage another tumbler; substantially as described.

2. in a lock, a case, two members in said case, a cylinder lockmechanism associated with said case, two bits or rollbacks for saidcylinder lock mechanism adapted to operate the respective membersaforesaid, and a plurality of keys for said cylinder lock mechanism, oneof said bits or rollbacks being displaceable relative to the rother andrelative to one of said members by one of said keys; substantially asdescribed.

8. In a lock, a case, tivo movable members therein, a cylinder lockmechanism associated With said case, a rollbackfor said cylinder lockVmechanism iixed in cooperation With one of said members, and a secondrollback for said cylinder lock mechanism movable relative to the iirstrollback and to the other member by means of a certain key;

Vsubstantially as described.

gagement With 'one of vsaid members, and the other rollback beingnormallyrotatable out of engagement With the otherrmember butprojectable into engageinentyvvithsuch 'other member by means of acertain key; substantially as described.

5.1n a lock, aV case, a cylinder lock securedv in an openingV in saidlcase,'separate members in said case adapted for operation by saidcylinder lock, said members lying in different planes, and separate bitscarried by said cylinder lock, one of said bits normally lying intheplane of one of said members, and the other bit normally lying out ofthe plane or the Vother member, but projectable into such plane;substantially as described. ,c

6. The combination With lock mechanism of a' pin tumbler lock having -akey plug, said key plug provided with a keyvvay, a rollback foroperating said lock mechanism,

l connected With the rear endorn the key plug,

a second rollback, a plurality oi"v keys insertible into said keyway,and a memberY carrying said second rollback, movable relative to saidirstrollback by one of said keys and adapted'toactuate said lock mechaj,f nism by means of said second rollback; substantially as describe 7.The combination, vvithlock mechanism, of a pin tumbler lock having a keyplug, said key plug provided ivith'a keyvvay, a rollback connected withthe rear end of said key plug and adapted to operate a part 01"" saidlock mechanism, a second rollback, a

plurality or" keys insertible into Vsaid keyway, and a member carryingsaid second rollback and projecting into the keyivay and movablerelative to the irstvrollbackV by engagement with one 'of said keys,said member being radapted when so moved to operate another part of saidlock mechanism Vby said vsecond rollback and being in-` operative byanother of said keys; substantially as described.

8.1na lock, a casing, a bolt controlling mechanism mounted therein, asecond bolt controlling mechanism Within said casingY in a differentplane from said first controlling mechanism, a cylinder lock mechanismcarried. by said kcasing having 'an operating member operativelypositioned relative to one of said mechanisms and operable by a seriesoi-` keys to operate said mechanism and having alsoa second operatingmember jbodily movable relative tothe lirst operating member andnormally inoperatively positioned relative to the other of said boltcontrolling mechanisms, and means to so pcsition said second .operatingmember rela-` tive to said other bolt controlling mechanism by a certainkey whereby it may actuate said mechanism. i Y

Y9o In a lock, a casing, a primary mechanism therein provided with anoperating abutment, a secondary mechanism having an operating abutmentpositioned in a dili'erent plane from said primary abutment, a rotatableelement provided With an operating member normally positionedto rotateYWith said element` in anl arc in the plane or one of said abutments,-asecond operating member movable relative to said irst operating memberand positioned to rotate With said member in an arc Vnormally out of theplane of the other of saidrabutments, tumbler mechanism coperating Withsaid rotatable element, a series of keys coperating Vvvith 'saidrotatable element and tumbler f in, a cylinder `lock mechanism carriedby saidV casing and Vhaving a relatively iiXed bolt-actuating member,and a second and relatively l.movable actuating-member positioned in adiiiere'nt plane from said fixed member, said iiied'member beingoperable from one side of the door by a series of keys j to project andretract said bolt, manually controlled mechanism operable from theopposite side of the door to project and retract said bolt and operablealso to project and lock said bolt against retraction-from the oppositeside through said series ofkeys, and another and VcertainV keycooperating vvith said cylinder lock from said opposite side of the doorto bodily move lsaid second bolt-actuating member relative to saidi'iXed member and to a'position to cooperate with Y said manuallycontrolled kmechanism to retract and project said dead-bolt.

l1. ln a lock, a casing, a dead-bolt 'thereiii, primary and secondarytumbler vrmechanism positioned in dillerent planes and vcooperating withsaid bolt, a cylinder'lock mechanism carried by said casing'- and einiiol bodying a ykey controlled rotatable plug, a

relatively fixed rollback operatively connected to said plug, andaseccndrollb'ack movable relative to the irst rollback, said rollbackslbeing Ypositioned in didereiit planes and' said fixed rollback beingoperable by a series of keys from one' side of the door to engage saidprimary tumbler mechanisin and bolt'to project and retract said bolt,means' normally positioning said movable rollback to rotate with saidplug and rst rollback in an arc out of the planes of said tumblermechanisms, manually controlled mechanism operable from the sideopposite said cylinder lock to operate said primary and secondarytumbler mechanism and to project and retract said bolt, said secondarytumbler mechanism being ccnstructed and arranged when actuated toproject said bolt, to lock said bolt against retraction from theopposite side through said series of keys, and means operable from saidopposite side through a certain key whereby said movable rollback ispositioned to rotate with said plug and irst rollback in an arc in theplane of said secondary tumbler mechanism to engage said mechanism toproject and retract said bolt independently of said manually controlledmeans.

12. The combination with lock mechanism, of a pin tumbler lock having akey plug, said key plug provided with a keyway, a rollback for operatingsaid lock mechanism connected with the rear end of the key plug, aplurality of keys insertible into said keyway, a member on said pintumbler lock movable relative to said first rollback by only one of saidkeys, and a second rollback carried by said member and adapted toactuate said lock mechanism by means of said last named key;substantially as described.

13. rIhe combination with lock mechanism, of a pin rtumbler lock havinga key plug, said key plug provided with a keyway, a rollback connectedto the rear end of the key plug and adapted to operate a part of said.lock mechanism, a plurality of keys insertible into said keyway, aspringpressed member projecting into the keyway, and movable relative tothe lirst rollback by engagement with one of said keys, and a secondrollback carried by said member and adapted to operate another part ofsaid lock mechanism; substantially as described.

14. The combination with a mortise lock having a case and two separateparts or members therein, of a pin tumbler lock having a key plug, saidkey plug provided with a keyway, a rollback connected with the rear endof the key plug, and adapted to operate one part or member of saidmortise lock, a second rollback adapted to operate another part ormember of said mortise lock, a plurality of keys insertible into saidkeyway, and a movable member on said pin tumbler lock carrying saidsecond rollback and shiftable relative to the iirst rollback by one ofsaid keys only and adapted when so shifted to operate the second namedpart or member of said mortise lock by means of said second rollback;substantially as described.

15. In a lock, the combination of a boltmechanism having two tumblers,of a pin tumbler lock having `a key plug, said key plug provided with akeyway, a rollback connected with the rear end of the key plug andadapted to operate one of said tumblers, a plurality of keys insertibleinto said keyway and adapted to operate said l'irst rollback and arollback on said pin tumbler lock movable relative to said firstrollback and actuated by one of said keys only to operate the othertumbler; substantially as described.

16. In a lock, a case, a sliding member therein, a primary tumbler forsaid sliding member, having a rearwardly projecting lug, a secondarytumbler slidable on the case wall, back of said sliding member, andhaving a notched slot cooperating with the lug of said primary tumbler,means for guiding said secondary tumbler for forward and rearwardmovement, means for locking said secondary tumbler in its advanced andretracted positions respectively, and means for operating said tumblers;substantially as described. j

17. In a lock, the combination, with a bolt mechanism having twotumblers, of a pin tumbler lock having a key,y plug, said key plugprovided with a keyway, a rollback operative by said key plug andadapted to actuate one of saidtumblers, a second rollback adapted toactuate the other tumbler, a plurality of keys insertible into saidkeyway for operating said first rollback, and a member mounting saidsecond rollback on said pin tumbler lock and movable relative to thefirst rollback by one of said keys; substantially as described.

1S. A cylinder lock having two rollbacks, and two keys for said lock,one of said rollbacks being movable rearwardly of said cylinder lock bythe insertion of one of said keys, without being so moved by theinsertion of the other key, in combination with lockmechanism having apart to cooperate with said rearwardly movable rollback, when the latterhas been moved rearwardly, and another part to cooperate with the otherrollback; substantially as described.

19. In a lock, a latch bolt, a sliding member, a tumbler for saidsliding member, means for retracting the latch bolt, and means operatedby said tumbler to dog said retracting means; substantially asdescribed.

20. Ink a lock, a latch bolt, a sliding member, a tumbler for saidsliding member,

` means for-retracting the latch bolt, and a lever operated by saidtumbler to dogsaid retracting means; substantially; as described.

21. In a lock, a dead bolt, primary and secondary tumblers therefor,means for operating said tumblers, a latch bolt, a latch bolt retractingdevice, and dogging means for said retracting device actuated directlyby said secondary tumbler; substantially as described.

22. In a lock, a dead bolt, pivoted tume blers therefor, a latch bolt, eknob shoe for operable by the secondary tumblerysubstan- 10 retractingseid latch/bolt, vanda cloggingV tiallyas described. member for saidknob shoe actuated directly In Witness whereof, I have hereunto set byone of said tumblers; substantially as my hand on the`26th day ofNovember, 1918.

described.

23. In a lock, a dead bolt, primary and WILLIAME' SPARKS secondarytumblers therefor, a latch bolt, a 1 Witnesses: knob shoe for retractingsaid latch bolt, and TERESA FITZSIMONS, e clogging lever for said knobshoe directly FRANCES HOWARD.

K Copies of this patent may Vbe obtained for ve cents each, byaddressing the Commissioner of' Patents, Washington, 1).,0.

